I have a HP DV7-3164CL and put in a larger hard drive and installed a retail copy of Windows 7 64bit I have installed all the drivers on the HP site for my laptop and also installed HP "Media Smart Smart Menu" and HP "Media Smart DVD" also HP "Media Smart Video" and HP Media Smart Webcam" I still have no on screen volume bar. I also tried removing the battery and power cord then holding the power button on for a minute. Still no help. The volume does work as normal, just no on screen display of the bar.
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